Satellite Communications: DOD Should Explore Options to Meet User Needs for Narrowband Capabilities, Report to Congressional Committees [open pdf - 2MB]
From the Highlights: "DOD has invested $7.4 billion to develop, build, and begin delivering MUOS [Mobile User Objective System]. However, longstanding gaps between the fielding of the satellite system and compatible user terminals have limited DOD's ability to fully use the system. The Senate Armed Services Committee report to the bill for the National Defense Authorization Act for Fiscal Year 2020 contained a provision for GAO [Government Accountability Office] to review DOD's use of MUOS capabilities and any plans for a MUOS follow-on capability. In this report, GAO (1) provides information on the extent to which DOD is using MUOS advanced communications capabilities; (2) assesses DOD's challenges and steps taken in transitioning to these capabilities, and (3) assesses efforts DOD has underway to meet future narrowband satellite communications needs. This is a public version of a sensitive report that GAO issued in June 2021. Information that DOD deemed to be sensitive has been omitted."
Government Accountability Office: https://www.gao.gov/